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Finding the Fourth Proportional to 10,367.80, 15,552 and 4,130.80

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Solution

The fourth proportional to 10,367.80, 15,552 and 4,130.80 is: 6,196.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,367.80 : 15,552 = 4,130.80 : x
  2. Step 2: Convert to fraction form
    10,367.80/15,552 = 4,130.80/x
  3. Step 3: Cross multiply
    10,367.80x = 15,552 × 4,130.80
  4. Step 4: Simplify right side
    10,367.80x = 64,242,201.60
  5. Step 5: Solve for x
    x = 64,242,201.60/10,367.80
  6. Step 6: Final answer
    x = 6,196.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.